Equus 3173 - Import Code Reader - Manual (Page 16)

Honda/Acura
OVERVIEW OF HONDA/ACURA DIAGNOTIC SYSTEMS
13 Chapter 3
OVERVIEW OF HONDA/ACURA DIAGNOSTIC SYSTEMS
• Retrieving codes from
Honda/Acura vehicles
requires the use of the two
terminal connector of code
retrieval tool as shown in Figure H1.
• Honda/Acura vehicles use a variety of diagnostic systems
which use either the “Check Engine” light or LEDs (Light
Emitting Diodes) on the ECM (Engine Control Module) to
display diagnostic trouble codes.
• To retrieve codes you will need to
access your vehicle’s computer test
connector or ECM.
• Honda/Acura vehicles use a rectan-
gular two-socket plastic connector,
usually light blue in color (H2).
NOTE: Some Honda/Acura models do not require a tool to
retrieve codes. The “Tool Req?” column in the “Code Retrieval
Procedures Tables” on pages 14 through 17 will let you know if
a tool is required. If no tool is required, just follow the
procedures as indicated to retrieve codes.
“Check Engine” Light
• The “Check Engine” light does more than alert you to a
potential problem. It also transmits the fault codes in the
computer’s memory through a series of blinks and pauses
when the vehicle is in diagnostic mode.
• Your “Check Engine” light is located on your vehicle’s
instrument cluster, and may be labeled “PGM-FI”, “PGM-
CARB”, “CHECK”, or with a picture of an engine (Figure
H3).
NOTE: If your “Check Engine” light does not come on when you
turn on the ignition, please refer to your vehicle’s service
manual. You may have a problem with the vehicle that is
preventing it from illuminating. You must fix this problem
before you can retrieve fault codes from the vehicle’s computer.
HONDA
CONNECTOR
CHECK CHECK ENGINE
H1
H2
H3